Convert DB_REF to ETRS89

Convert coordinates from DB_REF (EPSG:5681) to ETRS89 (EPSG:4258) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

From

Input (lon, lat (decimal degrees))

Output (lon, lat (decimal degrees))

Direct link to this transformation: epsgtransform.com/transform/epsg-5681-to-epsg-4258

Official EPSG transformation from DB_REF to ETRS89

The EPSG Geodetic Parameter Dataset defines 1 transformation between DB_REF (EPSG:5681) and ETRS89 (EPSG:4258). Its parameters, accuracy and area of use are listed below.

DB_REF to ETRS89 (1)

EPSG:5826±0 m

Method:: Coordinate Frame rotation (geog2D domain)
Area of use:: Germany - onshore
Scope:: Engineering survey and topographic mapping for railway applications.

Parameter	Value	Unit
X-axis translation(tx)	584.9636	metre
Y-axis translation(ty)	107.7175	metre
Z-axis translation(tz)	413.8067	metre
X-axis rotation(rx)	-1.1155	arc-second
Y-axis rotation(ry)	-0.2824	arc-second
Z-axis rotation(rz)	3.1384	arc-second
Scale difference(ds)	7.9922	parts per million

Defines DB_REF so considered errorless. Defined with parameter values for forward and reverse CTs with rotation and scale to greater resolution. The OGP truncated values and reversible formula have no impact on calculation results at the micron level.

Convert EPSG:5681 to EPSG:4258 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:5681", "EPSG:4258", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:5681 — DB_REF

geographic system using latitude and longitude on an ellipsoid · Area of use: Germany - onshore

+proj=longlat +ellps=bessel +no_defs +type=crs

More about EPSG:5681 →

Target: EPSG:4258 — ETRS89

geographic system using latitude and longitude on an ellipsoid · Area of use: Europe - ETRF by country

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs

More about EPSG:4258 →

Frequently asked questions

How accurate is converting DB_REF to ETRS89?: The most accurate official EPSG transformation between these systems is accurate to about ±0 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation in a desktop GIS.
Does my data leave the browser when I use this converter?: No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.

Need the reverse? Convert EPSG:4258 to EPSG:5681 →